Datos de localidades de ocurrencia de A. quebracho-blanco Coordenadas de ocurrencia recopiladas de datos de colectas propias del grupo de trabajo, datos de herbario y bases de datos online de A. quebracho-blanco para la construcción de Modelos de nicho ecológico y análisis espaciales, asociados con datos genéticos.

Pollen types identified in honey samples of Plebeia mansita and their frequency classes and frequency of occurrence in locality Baritú, Salta province La información aportada en esta base corresponde a los datos recopilados durante la observación microscópica de las 41 muestras de miel de Plebeia mansita, una abeja nativa sin aguijón productora de miel en sectores de Yungas del Noroeste Argentino. Los datos corresponden a los valores porcentuales registrados de cada uno de los tipos polínicos observados e identificados en las muestras de miel. Asimismo, la base aporta datos sobre la riqueza polínica (valores mínimo, máximo y promedio) observada en cada muestra de miel y la clasificación asignada a cada muestra, es decir si la misma es una miel monofloral o multifloral de acuerdo a la reglamentación vigente en el territorio argentino.

Datos de parámetros Fisico químicos de sitios de muestreo 2023 Datos de parámetros físico químicos de sitios muestreados en el Río Luján y el Río Areco en San Antonio de Areco. Recuento de micronúcleos para los sitios del río Luján y determinación de factor de condición para ambas cuencas

Estres salino e hídrico en Trichloris Variables morfofisiológicas evaluadas en Marinoni et al. (2020). Evaluación de variables morfológicas y fisiológicas en respuesta a estres salino e hídrico en ecotipod de T. crinita y T. pluriflora

Caracterización de NPs de YVO4:Eu3+ funcionalizacionalizadas con ácido oleico y 3-(trimetoxisilil)propil metacrilato Se caracterizaron nanopartículas de YVO4:Eu3+ funcionalizadas con dos agentes de acoplamiento distintos: 3-(trimetoxisilil)propil metacrilato y ácido oleico. A las nanopartículas funcionalizadas con ácido oleico previamente se les sintetizó un shell de SiO2. Las técnicas de caracterización utilizadas fueron: FTIR, TEM, TGA y DLS.

Emisiones netas de metano desde un relleno sanitario en la ciudad de Tandil, Argentina El conjunto de datos contiene las concentraciones de metano atmosférico (CH4) y las emisiones de CH4 estimadas de un vertedero en la ciudad de Tandil, Argentina. Las concentraciones atmosféricas de CH4 (en ppm) se registraron durante 10 períodos de 15 días cada uno. Las muestras de aire se recolectaron mediante recipientes de acero inoxidable con un volumen de 0.5 litros, que comprenden una válvula de entrada y un restrictor de ingreso de aire. Además, los flujos de CH4 desde la superficie de las celdas del vertedero (en g m-2 d-1) se midieron aplicando la técnica de cámara estática. Finalmente, se muestran las emisiones de CH4 de los tubos de venteo del relleno (en g d-1), estimados utilizando la metodología de trazadores de gas con cápsulas permeables llenas de SF6 instaladas dentro de cada tubo de venteo. Todos estos datos nos permitieron estimar las emisiones netas de CH4 del relleno estudiado y la energía eléctrica potencial que podría generarse a partir del CH4 liberado de los tubos de venteo.

Revisión de literatura de distribucuión geográfica a nivel mundial y arreglo experimental para medición de Tasa de Oxidación de metano (TOM) en suelos con forestaciones, hasta diciembre de 2021 Recopilación de datos a partir de literatura científica en idioma inglés hasta diciembre de 2021, en la que se estima la Tasa de oxidación de metano (TOM) en sistemas forestales (naturales o implantados) y en ocasiones, otros sistemas de referencia como pastizales, cultivos, rellenos sanitarios, arrozales. Se presenta listado de autores, ubicación geográfica de los registros, valor de TOM reportado, condiciones de medición y valor obtenido de TOM.

Presencia/Ausencia de especies/morfo-especies de arañas en agroecosistemas del Chaco Seco Meridional Se trata de una base de datos de presencias (1) y ausencias (0) creada con colectas realizadas entre mediados de febrero y mediados de marzo de 2011, 2012 y 2013 en agroecosistemas del Chaco Seco, en el Noroeste de la provincia de Córdoba

Shorelines and beach width time series for three beaches of Mar del Plata (1986-2021) acquired from satellite imagery This repository contains the data used to evaluate the performance of a beach nourishment project in three bays of Mar del Plata, Province of Buenos Aires, Argentina. The project was carried out by the Belgian company Dredging International between 1998 and 1999. A total of 2,480,000 m3 of sediments were dredged from the mouth of the local port and deposited on the Playa Grande, Varese and Bristol beaches. CoastSat 2.0 toolkit (https://github.com/kvos/CoastSat), an open-source Python software for shoreline detection was utilized. The toolkit allows users to acquire time series of shoreline positions for any coastal area using available satellite imagery from the Google Earth Engine platform. In this case, it was used with data from the Landsat missions L5 (1986–2012), L7 (1999–2021), L8 (2013–2021), and the Sentinel mission S2 (2015–2021). Top-of-Atmosphere reflectance images from the Landsat missions with a resolution of 30 m and a revisit time of 16 days (Tier 1) were utilized, along with images from the Sentinel 2 mission with a resolution of 10 m and a revisit time of 5 days (Level-1C). Additionally, the toolkit employed spatial resolution enhancement techniques over Landsat images to map the position of the shoreline with an accuracy of ~10 m. In this repository, CoastSat-detected shorelines can be accessed along with the normal to shore transects from which the beach width time series were obtained to analyze beach response to nourishment. Tide-corrected beach width time series are also provided.

Thermophysical Behavior of Carbonated Aqueous Solutions Containing Monoethanolamine and Degradation Products Hernández Narciso, Clàudia Rosa; Martínez, Cristina G.; O'Connell, Brendan; Rodriguez Reartes, Sabrina Belen; Llovell, Fèlix; Trusler, J. P. Martin; Sedransk Campbell, Kyra L. The impact of the degradation of monoethanolamine (MEA) on the physicochemical properties of the solvent is experimentally characterized. Based on the identification of three main degradation products of MEA: oxazolidine-2-one (OZD), N-(2-hydroxyethyl)ethylenediamine (HEEDA), and 1-(2-hydroxyethyl)-2-imidazolidinone (HEIA), new measurements for the density, surface tension, and viscosity of partially carbonated solutions containing water, MEA and those products were conducted at different MEA/degradation product molar ratios. The experiments covered a temperature range from 298.15 to 353.15 K at atmospheric pressure. The more stable and impactful degradation product, HEIA, was analyzed separately to determine its vapor pressure, as well as the density and viscosity of aqueous solutions with HEIA mass fractions of 100, 75, 50, and 25% in the same temperature range. The reported data demonstrate the difference in the performance of aqueous MEA solutions containing degradation products as compared to a fresh solution. This aspect is crucial for understanding the impact and effectiveness of postcombustion CO2 capture using aqueous amine systems in an industrial setting.

Electric Field Gradient in Chiral and Tetrahedral Molecules within High-Order LRESC Formalism Aucar, Juan Jose; Melo, Juan Ignacio; Maldonado, Alejandro Fabián In this work, we present the electric field gradient (EFG) given by the linear response elimination of the small component (LRESC) scheme up tothe 1/c order (c is the speed of light in vacuum) in CHFClX (X = Br, I, At) chiral molecules, together with CHF2Br and CH2FX (X = Br, I, At) tetrahedral systems. The former could be good candidates for further parity violation studies, especially when heavy atoms are surrounding. In this context, the LRESC scheme demonstrates effective applicability to large tetrahedral and chiral molecules that incorporate heavy elements, with relativistic effects playing a crucial role. The LRESC results of EFG exhibit an excellent agreement with those calculated at the four-component level, giving differences of only hundredths order in a.u. (atomic units) for the bromine nucleus and less than 0.1 a.u. for the iodine nucleus.Regarding the other nuclei, for the chiral molecules, there is a heavy atom effect on the light atom (HALA) for chlorine and fluorine atoms as the substituent halogen atom becomes heavier. Furthermore, the electronic part of the EFG for the central carbon and fluorine nuclei presents an important dependence with the environment in the molecules under study. With accurate calculations of the EFG and tabulated nuclear quadrupole moment, the nuclear quadrupole coupling constant is obtained within the LRESC scheme, including for the first time correlation effects on the spin-dependent corrections with this methodology, providing results close to the experimental ones for Cl, Br, and I atoms. At the Hartree−Fock level, the differences are around 6% for Br and I nuclei, and at the density functional theory level with the LDA and PBE0 functionals, the differences are no more than 2%.

A mini review of mycotoxin’s occurrence in food in South America in the last 5 years: Research gaps and challenges in a climate change era Foerster, Claudia; Müller Sepúlveda, Andrea; Copetti, Marina Venturini; Arrua, Andrea Alejandra; Monsalve, Liliam; Ramirez, Maria Laura; Torres, Adriana Mabel Mycotoxins are natural metabolites produced by species of filamentous fungi belonging mainly to the genera Aspergillus, Fusarium, Penicillium, and Alternaria, which can grow in various crops and foodstuffs. The South American climate is diverse, varying from tropical, temperate, and arid to cold, ideal for the growth of different types of fungi and mycotoxin production. This mini review aimed to describe the natural occurrence of mycotoxin in food in South America from 2018 to 2023, identifying research gaps and challenges in an era of climate change. We analyzed 53 studies, 21 from Brazil. Most of the mycotoxins analyzed in South America were the traditional and regulated mycotoxins, with variable occurrences depending on the region, climatic conditions, and methodology used. Emerging and modified mycotoxins have only been studied in Argentina and Brazil, where some studies have shown high occurrences. Given this, it is essential to strengthen food safety laboratories and surveillance capabilities and establish early warning systems. It is also essential to continue working to raise awareness of mycotoxins as a public health issue and to study and prevent the impact of climate change on soil microbial population, the new prevalence of fungi, and the profile of toxigenic species. An effective connection and collaboration between disciplines and sectors in different countries is needed to meet this research challenge.

Influencia del reloj biológico sobre la expresión de genes relacionados con la resistencia a insecticida en Triatoma Infestans En Triatoma infestans se observó resistencia a los piretroides atribuida en parte a una metabolismo oxidativo elevado mediado por los citocromos P450. La nicotinamida Adenina dinucleótido fosfato (NADPH) citocromo P450 reductasa (CPR) desempeña un papel crucial en catalizar la transferencia de electrones del NADPH a todos los citocromos P450. Las variaciones diarias en la expresión del gen CPR y de un gen P450 (CYP4EM7), ambos asociado con la resistencia a los insecticidas, sugirió que sus expresiones estarían bajo el control del reloj endógeno. Para aclarar la participación del reloj en la orquestación de las fluctuaciones diarias en la expresión de los genes CPR y CYP4M7, se propuso investigar el efecto de silenciar el gen del reloj period (per) por ARN interferencia (ARNi). Los resultados obtenidos permitieron establecer que el silenciamiento del per es influenciado por los esquemas de ingesta utilizados en los protocolos de interferencia. El el silenciamiento de per gen en T. infestans redujo su expresión en todos los puntos de tiempo analizados y abolió el ritmo característico en la expresión transcripcional del ARNm del gen per. El efecto del silenciamiento del gen per en los perfiles de expresión a nivel transcripcional de los genes CPR y CYP4EM7 mostró la pérdida de ritmicidad y demostró la participación del reloj biológico en la regulación de su expresión.

Parasite assemblages as indicators of stability in stock structure of Cynoscion guatucupa (Sciaenidae) after a quarter of century of exploitation in a marine warming hotspot Lanfranchi, Ana Laura; Canel, Delfina; Alarcos, Ana Julia; Levy, Eugenia; Braicovich, Paola Elizabeth; Marcotegui, Paula Soledad; Timi, Juan Tomas Climate change is impacting marine species, leading to shifts in their distribution to higher latitudes and to deeper locations. Parasite communities are dynamic systems influenced by biotic and abiotic factors, making them valuable tools for studying ecological processes of their hosts. This work aims to assess possible changes in parasite structure that occurred in the northern stock of Cynoscion guatucupa in the Argentine Sea, over approximately 25 years, by using parasites as tags in a region characterized as a hotspot of significant warming in recent decades. Parasite assemblages of adult and juvenile fish from two periods caught at two regions of the Argentine Sea were analyzed. Species richness remained relatively constant across samples, although four of the eight compared species from juvenile fish showed significant increases in prevalence, while for adults three species decreased. Differences in parasite assemblages were significant between periods, but not between regions, indicating that the stock structure has apparently remained stable in recent years, even under a warming process that, in turn, seems to have affected its parasite assemblages which however, continue showing homogeneous parasitological attributes throughout the habitats. Most results indicate that changes in parasite burdens are not related to the population density or geographic distribution of C. guatucupa, but to changes in temperature, salinity or in the density of top predators. Parasites seem to have felt the impact of global change before their host, thus, they can be considered early sentinels to monitor the stability and distribution of this important resource.

Growing in Scarcity: Pre-Hispanic Rain-Fed Agriculture in the Semi-Arid and Frost-Prone Andean Altiplano (Bolivia) Cruz, Pablo; Joffre, Richard; Saintenoy, Thibault; Vacher, Jean Joinville Ancient Andean agricultural landscapes have been the subject of a large number of archaeological and agro-ecological studies, which generally refer to regions with favourable environmental conditions or, in the case of arid and semi-arid environments, those with irrigation facilities. The aim of this article is to present and analyse the pre-Hispanic rain-fed farming systems widely represented in two adjacent regions of Bolivia’s arid and cold southern Altiplano. The search for archaeological agricultural areas combined aerial analysis and field surveys. Agro-ecological characterisation was based on historical and ethnographic studies of the region’s present-day populations. Despite their geographical proximity, similar environmental conditions, and same agropastoral way of life, the typology of cultivated areas developed in the southern altiplano differs significantly. Within this same framework of adaptation and resilience, the sectorisation of agricultural systems observed in these two regions reveals a regional productive specialisation that favoured internal exchanges and exchanges with other regions. These differences are related to two models of non-centralised, low-inequality societies—one strongly based on cohesion and the other characterised by greater fragmentation and social conflict—underlining the limits of strict environmental determinism in shaping agricultural landscapes. These results provide new food for thought in the debate on the use and value of rain-fed agricultural practices and more broadly on the diversity of adaptations by human societies in extreme and unstable environmental contexts.

Una fuente inédita para el estudio del ayllu y el parentesco en los Andes surperuanos. Los libros parroquiales de la iglesia San Francisco de Asís de Marcapata (Quispicanchi, Cuzco, Perú); An unpublished source for the study of the ayllu and kinship in the southern Peruvian Andes: The parish records of the San Francisco de Asís church, Marcapata (Quispicanchi, Cuzco, Peru) Sendón, Pablo Federico El artículo presenta y discute los libros de matrimonio y bautismo conservados en la parroquia San Francisco de Asís del distrito de Marcapata (Quispicanchi, Cuzco) con el propósito de explorar sus posibilidades para el estudio del ayllu y el parentesco entre la población local a lo largo de los siglos XIX y XX. Se parte de un análisis de la información censal oficial disponible acerca del distrito y de sus unidades constitutivas a modo de introducir la información contenida en los libros parroquiales. Sometidos a una lectura genealógica, los libros demuestran ser una fuente de gran utilidad para la identificación de redes de parentesco con posibilidades exploratorias excepcionales para los estudios interesados en la morfología social de las poblaciones campesino-indígenas de esta región de los Andes surperuanos. A partir de un análisis preliminar de estas redes —en el que se presta especial atención a los lugares de nacimiento y residencia de los individuos registrados en ellas, la distribución de los principales patronímicos y las tasas de endogamia y exogamia hasta el nivel del distrito— es posible acceder a un panorama de la conformación distrital alternativa a la que registran las fuentes oficiales.; The article presents and examines the marriage and baptismal records preserved in the parish of San Francisco de Asís, in the district of Marcapata (Quispicanchi, Cuzco), with the aim of exploring their potential for studying ayllu and kinship relations among the local population in the nineteenth and twentieth centuries. The analysis begins with an examination of the official census data available for the district and its constituent units as an introduction to the information contained in the parish records. When subjected to a genealogical reading, the records prove to be a highly valuable source for identifying kinship networks with exceptional potential exploration for studies focused on the social morphology of peasant indigenous populations in this region of the southern Peruvian Andes. A preliminary analysis of these networks –paying particular attention to the places of birth and residence of individuals, the distribution of principal surnames, and rates of endogamy and exogamy down to the district level– provides an alternative view of district organization that differs from official sources.

Hace 25 años: Una verificación experimental de la Relatividad General a escala terrestre Ferraro, Rafael La teoría de la relatividad general de Einstein continúa superando las pruebas experimentales a las que se la somete. A ochenta años de su formación, una nueva serie de experimentos terrestres confirma algunas de las predicciones de la teoría.

Consumption of a Byproduct of Chia Seed Oil Extraction by Cold Pressing Ameliorates Cardiovascular Risks Factors in an Experimental Model of Metabolically Unhealthy Normal Weight Alarcón, Gabriela del Jesús; Valoy, Agostina; Martin Alzogaray, María Florencia; Medina, Analía; Van Nieuwenhove, Carina Paola; Medina, Mirta; Jerez, Susana Josefina The byproduct of Salvia hispanica (chia) seed oil extraction by cold pressing, also known as expeller, possesses a high nutritional value. It is rich in proteins, fibers, minerals, and has a residual oil content of 7-11%, which is rich in omega 3 linolenic acid (ALA). However, this byproduct has been historically undervalued. Thus, the aim of current work was to study the effects of consuming of a rich in chia expeller diet on a rabbit model of metabolically unhealthy normal weight to validate their use as a functional food. Rabbits were fed different diets for a period of 6 weeks: a standard diet (CD), a high-fat diet (HFD), a rich in expeller CD (Exp-CD) and a rich in expeller HFD (Exp-HFD). The Exp-HFD attenuated the rise in basal glucose, TyG index, triglycerides, cholesterol and non-HDL cholesterol induced by the HFD. Both rich in expeller diets reduced mean arterial blood pressure (MAP) and increase liver and fat ALA levels compared to their respective controls. Furthermore, the angiotensin converting enzyme (ACE) activity was lower in the lungs of animals fed on rich in expeller diets compared to their respective controls. In vitro studies showed that ALA inhibited ACE activity. The evaluation of vascular reactivity revealed that rich in expeller diets improved angiotensin II affinity and reduced contractile response to noradrenaline. In conclusion, the consumption of rich in expeller diets showed beneficial effects in preventing cardiovascular risk factors such as insulin resistance, dyslipidemia and MAP. Therefore, its use as functional ingredient holds significant promise.

Macrocystis pyrifera Alga Extracts Combined with Azospirillum argentinense Improve Growth and Hormonal Responses in Zea mays Plants under Drought Stress Iparraguirre, Julia; Masciarelli, Oscar Alberto; Villasuso, Ana Laura; Piatti, Daniela del Rosario; Llanes, Analia Susana With increasing economic and nutritional demands that far outpace the addition of new agricultural areas around the world, biofertilizers are increasingly used to ensure the productivity of existing areas without sacrificing sustainability. This study evaluated the combination of algal extracts of Macrocystis pyrifera (a natural biofertilizer) with the plant growth-promoting bacteria Azospirillum argentinense in terms of their effectiveness in stimulating germination and growth of maize plants under different irrigation conditions. The performance of maize plants inoculated with the algae-bacteria formulation under water stress conditions was evaluated. The variables studied included different germination and growth parameters, such as dry and fresh weight of aerial and root part, total height and aerial and root part. The hormonal profile in maize seedlings was determined. The results related to growth parameters and phytohormone content demonstrate a synergistic effect between algae and bacteria, which means that a bioinoculant could be formulated based on their combination to promote the growth of maize in different climatic conditions and/or or water regimes. Such a product would fit well into current or future environmentally friendly plans for growing maize, aiming to reduce dependence on chemical fertilizers while preserving yield.

Variable Phenotypes in the Same Patient with PRRT2-Associated Disorders Loos, Mariana; Touzon, María Sol; Reyes, Gabriela; Juanes, Matías Hernan; Caraballo, Roberto Horacio Mutations in the PRRT2 gene lead to a spectrum of diseases with a commonpathophysiology including self-limited (familial) infantile epilepsy and paroxysmalkinesigenic dyskinesia as well as other paroxysmal diseases involving movement andheadache disorders. Atypical phenotypes, associated with episodic ataxia, epilepsy,hemiplegic migraine, developmental delay, and intellectual disability, have beenreported in approximately 5% of the patients, which is probably an underestimation.Here, we present three patients with variable PRRT2 phenotypes in each patient. In thefirst two patients, the manifestations were characterized by episodes of nonepilepticparoxysms and focal seizures starting in the first years of life with good response tocarbamazepine. One of them had no family history either of epilepsy or nonepilepticmotor manifestations. The other patient simultaneously developed epileptic spasms.Neurodevelopment was normal in both. The third patient presented with early-onsetfocal epilepsy that was resistant to antiseizure medications and evolved to spike-waveactivation in sleep associated with cognitive impairment and ataxia. In this patient, inaddition to the mutation in the PRRT2 gene, a novel pathogenic SCN1A variant wasidentified. The distinct clinical presentations in the same patient observed in our casesconfirm the broad spectrum of PRRT2-associated diseases.